56569366447 has 16 divisors (see below), whose sum is σ = 65635218432. Its totient is φ = 48184513920.

The previous prime is 56569366411. The next prime is 56569366453. The reversal of 56569366447 is 74466396565.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56569366447 - 2¹¹ = 56569364399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56569366457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636573 + ... + 719974.

It is an arithmetic number, because the mean of its divisors is an integer number (4102201152).

Almost surely, 2^56569366447 is an apocalyptic number.

56569366447 is a deficient number, since it is larger than the sum of its proper divisors (9065851985).

56569366447 is a wasteful number, since it uses less digits than its factorization.

56569366447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356798.

The product of its digits is 97977600, while the sum is 61.

The spelling of 56569366447 in words is "fifty-six billion, five hundred sixty-nine million, three hundred sixty-six thousand, four hundred forty-seven".